Heating-furnace.



No. 637,139. Patented Nov. I4, I899.

w. c. mApEY.

HEATING FURNACE.

(No Model.)

7 9 c 50 I 50 50 so 0 K4 As Z g E T E v 7K6), INVENTOI? A By I Kip-M UNITED STATES.

PATENT OFFICE.

WILLIAM G. MACEY, OF VANCOUVER, CANADA.-

HEATING-FURNACE.

srnoIFIoArion forming art of Letters Patent No. 637,139, dated November 14, 1899. Application filed February 27,1899. $e'ria1fio. 707,030. (No model.)

T0 to whom it may concern:

Be it known that I, WILLIAM COUCH MA- OEY, a citizen of the Dominion of Canada, residing at Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvementsin Heating=F urnaces,of which the following is a specification.

My invention relates to improvements in heaters for heating houses and other domestic buildings in which is a series of chambers placed approximately horizontal and arranged around within the inner walls of a rectangular casing, the cold air to be warmed being introduced through openings in the easing and passed through ducts to chambers which are independent of each other, and the smoke and gases are passed through these chambers within one or more pipes on a slightly-rising plane.

The object of my invention is to provide a means of exposing a maximum heating-surface of the gas-conducting flues to the air that is to be heated and for utilizing all the heating energy possible before allowing the gases to escape from the heater, so that the greatest efficiency may be obtained from the fuel. I attain this object by the apparatus illustrated in the accompanying drawings, in which- Figure l is a horizontal sectional plan of my invention on the line 0 c in Fig. 2. Fig. 2 is a vertical section of Fig. 1, taken through the fire-box on the line a a; and Fig. 3 is a sectional detail taken on the line b b in Fig. 1. This shows a section of one of the air-ducts that conducts the air to the heating-chambers.

Similar numerals and letters refer to similar parts of the construction throughout the several views.

The main casing A is constructed of brick or of some comparatively non-conductive material and it is preferably of rectangular form, as shown, having ends, walls, and roof. At one corner of this casing A is a fire-box 10, having the usual grate-bars, ash-pit, and furnace-door. This is, as in the usual way, lined with fire-brick.

Extending clear around the inner Walls of the casing A and With their tops approximately on a horizontal plane with the top of the fire-box are chambers 11, 12, 13, and 14, these being divided ofi from each other by spaces 15, as shown, for a reason to appear.

Arranged along the upper sides of the said chambers are slotted openings 16 for allowing the heated air to escape to the main reservoir Within the casing A. Connecting with the chambers 11, 12, 13, and 14 are ducts 17, 18, 19, and 20, respectively. These communicate with the outside of the casing A, and theflow of air may be controlled by dampers 21, as shown in Fig. 3 in dotted lines and in Fig. 1.

The smoke and gases are passed through the chambers 11, 12, 13, and 14 by a flue 22 to the first space 15, through two or more pipes 23 to the next space 15, and through similar fiues in the chamber 13 to the last space 15 in the direction of the arrow, thence escaping by the pipe 24. By reason of the heated gases being passed through the series -of pipes and spaces before being allowed to escape the maximum heating energy will be conveyed therefrom to the chambers 11, 12, 13, and 14 in such passage, and consequently a high efficiency of heating power will be obtained from a minimum amount of fuel,which is the desired object to be attained.

For cleaning the soot from the pipes or fiues within the chambers 11, 12, 13, and 14 I provide openings 25, 26, and 27 in the casing A. These communicate directly with the said fines, and the soot can be pushed into the spaces 15, from where it is removed by the openings 28 and 29 in the base of the casing A. The soot in the pipes 22 and 24 may be cleaned from the fire-box and from the said opening 26, respectively.

The furnace or heater is placed in the basement or lower part of a building, and the heated air is conducted from the reservoir within the casin g A to any desired point within the building by the openings 30, which connect with ducts of any pattern desired.

I am aware that prior to my invention various forms of heating devices have been employed having heating-tubes placed over a furnace and also heating pipes or ducts placed within the uptake of a chimney. Therefore I do not claim such a system of heating; but

What I do claim as new, and desire to secure by Letters Patent, is-- 1. Aheater; comprising a casing having a heat-collecting reservoir, said reservoir having hot-air outlets; a fire-box; a plurality of independent heating-chambers, said chamfor conducting the heated gases on a slightlyrising plane around the inner walls of the reservoir, heating-chambers inclosing such fines at intervals, ducts for admitting cold air to such chambers, and slotted openings in the upper sides of such chambers for the heat to escape to the reservoir, and means for drawing off the heated air from the reservoir as required, substantially as set forth.

WVILLIAM C. MAOEY. Witnesses:

ROWLAND BRITTAIN, LoUIs KERSHAW. 

